<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			
			body>div{
				background-color: #000000;
				width: 300px;
				height: 300px;
			}
		div>div{
			border: 1px red solid;
			width: 100px;
			height: 100px;
			position: absolute;
			left: 100px;
			top:100px;
			
			animation-name: revolve;
			animation-duration: 1s;
			animation-iteration-count: infinite;
			animation-timing-function: ease-in-out;
		} 
		@-webkit-keyframes revolve{
			0%{
			transform: rotate(180deg);
			}
		}
		div:nth-child(2){
			animation-delay: 0.1s;
		}	
		div:nth-child(3){
			animation-delay: 0.2s;
		}	
		div:nth-child(4){
			animation-delay: 0.3s;
		}	
		div:nth-child(5){
			animation-delay: 0.4s;
		}	
		div:nth-child(6){
			animation-delay: 0.5s;
		}
		</style>
	</head>
	<body>
		<div>
			<div></div>
			<div></div>
			<div></div>
			<div></div>
			<div></div>
			<div></div>
		</div>
	</body>
</html>
